error C2664: “DDX_Control”: 不能将参数 3 从“bool”转换为“CWnd &”

Question

 DDX_Text(pDX, IDC_Password, m_password);
 DDX_Control(pDX, IDC_Record, m_record);
 DDX_Text(pDX, IDC_Result, m_result);
 DDX_Text(pDX, IDC_Plus, m_plus);
 DDX_Control(pDX, IDC_use, m_use);///////////////这里出错，m_use是bool型的。改成DDX_Text也不行

Answer 1

你好：

     DDX_Control 的第三个参数必须是CWnd类的对话框、 窗体视图或到指定的控件相关的控件视图对象的成员变量的引用。具体请看MSDN文档：http://msdn.microsoft.com/en-us/library/z04ab59a.aspx  而DDX_Text 的第三个参数能用的类型有BYTE、int、short、UINT、COleCurrency 、COleDateTime、float、CString等字符类型。具体请看： http://msdn.microsoft.com/en-us/library/a1xttfdt.aspx 所以你用bool型的参数会报错。

Shu Hu

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Answer 2

你可以将m_use的类型修改成BYTE或者int都可以。

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Visual C++ enthusiast, like network programming and driver development. At present is being engaged in the WinCE/Windows Mobile platform embedded development.